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- Article
Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches
By: Charles M.C. Lee, Paul Ma and Charles C.Y. Wang
Applying a "co-search" algorithm to Internet traffic at the SEC's EDGAR website, we develop a novel method for identifying economically-related peer firms and for measuring their relative importance. Our results show that firms appearing in chronologically adjacent...
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Keywords:
Peer Firm;
EDGAR Search Traffic;
Revealed Preference;
Co-search;
Industry Classification;
Perception;
Internet and the Web;
Investment
Lee, Charles M.C., Paul Ma, and Charles C.Y. Wang. "Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches." Journal of Financial Economics 116, no. 2 (May 2015): 410–431.
- 2016
- Working Paper
The Search for Peer Firms: When Do Crowds Provide Wisdom?
By: Charles M.C. Lee, Paul Ma and Charles C.Y. Wang
In knowledge-based economies, many business enterprises defy traditional industry boundaries. In this study, we evaluate six "big data" approaches to peer firm identifications and show that some, but not all, "wisdom-of-crowd" techniques perform exceptionally well. We...
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Keywords:
Peer Firm;
EDGAR Co-search;
Analyst Co-coverage;
Wisdom Of Crowds;
Performance Benchmarking;
Crowd Of Crowds;
Internet and the Web;
Accounting
Lee, Charles M.C., Paul Ma, and Charles C.Y. Wang. "The Search for Peer Firms: When Do Crowds Provide Wisdom?" Harvard Business School Working Paper, No. 15-032, October 2014. (Revised November 2016.)
- 2014
- Working Paper
Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches
By: Charles M.C. Lee, Paul Ma and Charles C.Y. Wang
Applying a "co-search" algorithm to Internet traffic at the SEC's EDGAR web-site, we develop a novel method for identifying economically-related peer firms and for measuring their relative importance. Our results show that firms appearing in chronologically adjacent...
View Details
Keywords:
Peer Firm;
EDGAR Search Traffic;
Revealed Preference;
Co-search;
Industry Classification;
Analytics and Data Science;
Internet and the Web;
Mathematical Methods;
Corporate Finance
Lee, Charles M.C., Paul Ma, and Charles C.Y. Wang. "Search-Based Peer Firms: Aggregating Investor Perceptions Through Internet Co-Searches." Harvard Business School Working Paper, No. 13-048, November 2012. (Revised September 2013, March 2014, June 2014, July 2014.)